[1] Univ Leicester, Dept Resp Sci, Univ Rd, Leicester, England
[2] Univ Leicester, Dev Ctr Populat Hlth, Leicester, England
[3] Univ Nottingham, Sch Med, Lifespan & Populat Hlth, Nottingham, England
[4] Univ Nottingham, Nottingham Ctr Publ Hlth & Epidemiol, Nottingham, England
[5] Univ new Mexico, Coll Populat Hlth, Albuquerque, NM USA
[6] UCL, Med Sch, London, England
[7] Univ Hosp Leicester NHS Trust, Dept Infect & HIV Med, Leicester, England
[8] Natl Inst Hlth Res NIHR Leicester Biomed Res Ctr B, Leicester, England
[9] Natl Inst Hlth Res NIHR Appl Hlth Collaborat ARC E, Leicester, England
[10] London North West Univ Healthcare NHS Trust, Ealing Hosp, Southall, England
[11] Univ Coll London Hosp NHS Fdn Trust, London, England